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Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic
Fu, Le1; Jiang, Fuqing2; Li, Bo1; Cheng, Yongxin3; Xu, Guofu1; Huang, Jiwu1; Engqvist, Hakan4; Xia, Wei4
Corresponding AuthorFu, Le(fule2019@csu.edu.cn) ; Xia, Wei(wei.xia@angstrom.uu.se)
2022-04-01
Source PublicationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY
ISSN0955-2219
Volume42Issue:4Pages:1731-1742
AbstractThe addition of dopant(s) is an effective strategy to regulate the microstructure and properties of ZrO2-based ceramics. In this study, we investigated the effects of ternary element alloying, namely tantalum (Ta), niobium (Nb), and hafnium (Hf) elements, on the microstructure and transformability of ZrO2 nanocrystallites in a ZrO2SiO2 nanocrystalline glass-ceramic (NCGC) during sintering and thermal treatments. The ternary dopants enhanced the transformability of tetragonal ZrO2 (t-ZrO2) nanocrystallites during sintering, i.e., the dopants acted as t-ZrO2 destabilizer. The Ta, Nb and Hf elements dissolved in ZrO2 nanocrystallites, forming ZrO2 solid solution. Meanwhile, lamella nanotwins were formed within many ZrO2 nanocrystallites. No obvious segregation of dopants was detected at ZrO2 grain boundaries. t-ZrO2 and monoclinic (m) ZrO2 nanocrystallites were metastable in thermal treatments process, with "t" to "m" and the reverse "m" to "t" polymorphic transformation occurred simultaneously. Meanwhile, t-ZrO2 and m-ZrO2 nanocrystallites had a great tendency to grow larger during thermal treatments.
KeywordNanocrystalline glass-ceramics Transformability Dopant Thermal treatments
Funding OrganizationNational Natural Science Foundation of China ; Open Sharing Fund for the Large-scale Instruments and Equipments provided by Central South University
DOI10.1016/j.jeurceramsoc.2021.12.019
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[52102084] ; Open Sharing Fund for the Large-scale Instruments and Equipments provided by Central South University
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000742858000002
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173731
Collection中国科学院金属研究所
Corresponding AuthorFu, Le; Xia, Wei
Affiliation1.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China
4.Uppsala Univ, Dept Engn Sci, Appl Mat Sci, S-75121 Uppsala, Sweden
Recommended Citation
GB/T 7714
Fu, Le,Jiang, Fuqing,Li, Bo,et al. Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2022,42(4):1731-1742.
APA Fu, Le.,Jiang, Fuqing.,Li, Bo.,Cheng, Yongxin.,Xu, Guofu.,...&Xia, Wei.(2022).Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,42(4),1731-1742.
MLA Fu, Le,et al."Doping of tantalum, niobium, and hafnium in a translucent ZrO2-SiO2 nanocrystalline glass-ceramic".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 42.4(2022):1731-1742.
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